The correct option is C Silicones
Silicones are usually used in cosmetic surgeries.
Solid silicone (dimethylsiloxane) implants have been use in facial cosmetic surgery since the 1950's. Unlike liquid-filled silicone breast implants, solid silicone implants do not leach into the body and have been used for many years in medical procedures such as joint prostheses and heart valve replacement.